Transformer Oil Purification – Why it’s essential and what to watch out for

Transformers are commonly manufactured using cellulosic-based insulation materials which have an affinity for absorbing moisture – it’s in their DNA …

Furthermore, mineral oil (specifically) is severely impacted by moisture which will significantly reduce dielectric strength. Moisture can be present in either a dissolved or free-suspension state. Both conditions will have disastrous effects on the normal operation of a transformer.


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